SpringMVC入门简单实例

1.新建maven工程

2.导入jar包，pom.xml中写下

<properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <spring.version>4.1.0.RELEASE</spring.version> </properties> <dependencies> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <!-- spring begin --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <!-- spring end --> </dependencies>配置监听器在web.xml中

<listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> 配置过滤器，解决乱码

<filter> <filter-name>encoding</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encoding</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>配置springmvc分发器

<servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>namespace</param-name> <param-value>dispatcher-servlet</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> 编写dispatcher-servlet.xml

<?xml version="1.0" encoding="UTF-8" ?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:util="http://www.springframework.org/schema/util" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd "> <!-- 开启注解模式驱动 --> <mvc:annotation-driven></mvc:annotation-driven> <!-- 扫包 --> <context:component-scan base-package="com.nineclient.*" use-default-filters="false"> <context:include-filter expression="org.springframework.stereotype.Controller" type="annotation"/> </context:component-scan> <!-- 静态资源过滤 --> <mvc:resources location="/resources/" mapping="/resources/**"/> <!-- 视图渲染 jsp/freemaker/velocity--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 制定页面存放的路径 --> <property name="prefix" value="/WEB-INF/pages/"></property> <!-- 文件的后缀 --> <property name="suffix" value=".jsp"></property> </bean> </beans>编写applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd "> </beans>编写Controller

package com.nineclient.controller; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class ViewController { @RequestMapping("/view") public String view(HttpServletRequest request, HttpServletResponse response, Model model){ String path = request.getParameter("path") + ""; String contextPath = request.getContextPath(); model.addAttribute("contextPath", contextPath); return path; } }

编写jsp

<html> <head> <style> body { background : url(${contextPath}/resources/wass.jpg); background-size : 100% 100%; } </style> </head> <body> <h2>Hello World!</h2> </body> </html> 输入访问地址

localhost:8080/springmvc/view?path=index

可以一步步验证

1.:导入jar包后，运行tomcat看能否运行

2.springmvc分发器要读取一个配置文件，默认是${servlet-name}-servlet.xml

3.还需要applicationContext.xml

4.就是一些路径要注意